Docker Community Forums

Share and learn in the Docker community.

Error response from daemon: Duplicate mount point

Hi, I’ve just updated to version 3.4.0 of docker desktop for mac, and now I can’t start my containers.

15:50 38d/flow jameshulme (main) >> docker compose up
[+] Running 9/11
 ⠿ Volume "flow_database-testdata"  Created                                                                                                                                                            0.1s
 ⠿ Volume "flow_redis"              Created                                                                                                                                                            0.0s
 ⠿ Volume "flow_node_cache"         Created                                                                                                                                                            0.0s
 ⠿ Volume "flow_database-data"      Created                                                                                                                                                            0.0s
 ⠼ Container flow_db_1              Creating                                                                                                                                                           0.4s
 ⠼ Container flow_testdb_1          Creating                                                                                                                                                           0.4s
 ⠿ Container flow_build_1           Created                                                                                                                                                            0.4s
 ⠿ Container flow_fakempdb_1        Created                                                                                                                                                            0.4s
 ⠿ Container flow_typecheck_1       Created                                                                                                                                                            0.3s
 ⠿ Container flow_redis_1           Created                                                                                                                                                            0.3s
 ⠿ Container flow_fakeid_1          Created                                                                                                                                                            0.3s
Error response from daemon: Duplicate mount point: /var/lib/postgresql/data

I have tried docker compose down
I have tried deleting everything manually
I have tried restarting docker and my laptop

Relevant portion of docker-compose.yml

version: '3'
services:
  # postgres for flow development instance
  db:
    image: "postgres" # use latest official postgres version
    volumes:
      - database-data:/var/lib/postgresql/data/ # persist data even if container shuts downvolumes:
    environment:
        POSTGRES_DB: flow_dev
        POSTGRES_PASSWORD: password
        POSTGRES_USER: flow
    ports:
      - "8181:5432"
  # postgres for jest tests
  testdb:
    image: "postgres" # use latest official postgres version
    volumes:
      - database-testdata:/var/lib/postgresql/data/ # persist data even if container shuts downvolumes:
    environment:
        POSTGRES_DB: flow_test
        POSTGRES_PASSWORD: password
        POSTGRES_USER: flow
    ports:
      - "8182:5432"
...
volumes:
  database-data:
  database-testdata:

This was working before I updated. And it sounds like 3.4.0 does something with volumes.
So I’m fairly confident that this is a bug or breaking change with 3.4.0. Does anyone else have this problem?

I have the same problems with

  db:
    image: bitnami/postgresql:11.12.0-debian-10-r29
    ...
    volumes:
      - ./path/to/docker-entrypoint-initdb.d/:/docker-entrypoint-initdb.d/:ro

Worked fine on docker desktop 3.3.3 but fails on 3.4.0 with
Error response from daemon: Duplicate mount point: ....

Updating the image to bitnami/postgresql:11.12.0-debian-10-r29 fixed the issue.